* Improve documentation of lazy deletion config * Apply suggestions from code review Co-authored-by: Sacha Lansky <sacha@parity.io> * Update frame/contracts/src/lib.rs Co-authored-by: Andrew Jones <ascjones@gmail.com> * Improve wording Co-authored-by: Sacha Lansky <sacha@parity.io> Co-authored-by: Andrew Jones <ascjones@gmail.com>